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Make OIDs optional, per discussions in pghackers. WITH OIDS is still the

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default, but OIDS are removed from many system catalogs that don't need them.
Some interesting side effects: TOAST pointers are 20 bytes not 32 now;
pg_description has a three-column key instead of one.

Bugs fixed in passing: BINARY cursors work again; pg_class.relhaspkey
has some usefulness; pg_dump dumps comments on indexes, rules, and
triggers in a valid order.

initdb forced.
This commit is contained in:
Tom Lane
2001-08-10 18:57:42 +00:00
parent d062f0f4e9
commit bf56f0759b
83 changed files with 1962 additions and 1583 deletions
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4
src/backend/utils/cache/relcache.c vendored
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/cache/relcache.c,v 1.141 2001/06/29 21:08:25 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/cache/relcache.c,v 1.142 2001/08/10 18:57:37 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -1211,6 +1211,7 @@ formrdesc(char *relationName,
relation->rd_rel->relpages = 1;
relation->rd_rel->reltuples = 1;
relation->rd_rel->relkind = RELKIND_RELATION;
relation->rd_rel->relhasoids = true;
relation->rd_rel->relnatts = (int16) natts;
/*
@ -1988,6 +1989,7 @@ RelationBuildLocalRelation(const char *relname,
strcpy(RelationGetPhysicalRelationName(rel), relname);
rel->rd_rel->relkind = RELKIND_UNCATALOGED;
rel->rd_rel->relhasoids = true;
rel->rd_rel->relnatts = natts;
rel->rd_rel->reltype = InvalidOid;
if (tupDesc->constr)

24
src/backend/utils/cache/syscache.c vendored
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/cache/syscache.c,v 1.63 2001/06/18 03:35:07 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/cache/syscache.c,v 1.64 2001/08/10 18:57:37 tgl Exp $
*
* NOTES
* These routines allow the parser/planner/executor to perform
@ -485,6 +485,28 @@ SearchSysCacheCopy(int cacheId,
return newtuple;
}
/*
* SearchSysCacheExists
*
* A convenience routine that just probes to see if a tuple can be found.
* No lock is retained on the syscache entry.
*/
bool
SearchSysCacheExists(int cacheId,
Datum key1,
Datum key2,
Datum key3,
Datum key4)
{
HeapTuple tuple;
tuple = SearchSysCache(cacheId, key1, key2, key3, key4);
if (!HeapTupleIsValid(tuple))
return false;
ReleaseSysCache(tuple);
return true;
}
/*
* GetSysCacheOid
*